Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221468 | Pneumatically-operated filtering apparatus with filter movement controlled by level sensor | Robert J. Fox | 1993-06-22 |
| 4985146 | Filtering system | Robert J. Fox | 1991-01-15 |
| 4966693 | Apparatus for processing coolant | Robert H. Brandt | 1990-10-30 |
| 4895649 | Apparatus for processing coolant | Robert H. Brandt | 1990-01-23 |
| 4865724 | Metal working machine liquid filtering device with coalescer, filter, and time delayer | Robert H. Brandt | 1989-09-12 |
| 4717475 | Apparatus for separating water and oil by means of separate containers of oleophilic bodies | Robert H. Brandt | 1988-01-05 |
| 4477350 | Liquid filtering apparatus | Robert H. Brandt | 1984-10-16 |